Dinousaur Asteroid Earth Collision asteroid collisions earth destroyer or new frontier Dinousaur Asteroid Collision Earth

Dinousaur Asteroid Earth Collision asteroid collisions earth destroyer or new frontier Dinousaur Asteroid Collision Earth

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Interesting facts about space.

Triton and Pluto share roughly the same bulk composition and density, as well as similar atmospheres. In addition, both remote bodies move in unusual orbits. Pluto has a highly eccentric orbit, and is sometimes closer to the Sun than Neptune! Furthermore, Pluto orbits in the opposite direction around our Sun than do the eight major planets of our Solar System. Triton revolves around Neptune in a direction counter to that of its planet--and its retrograde orbit indicates that it is a captured object. Because of the unusual nature of both Triton's and Pluto's orbits, as well as the similarities of their bulk properties and atmospheres, it has long been thought that there is some sort of historical connection between them. Indeed, it was once thought that Pluto was an escaped moon of Neptune, but this is now considered unlikely. It is much more likely that long ago Triton, like Pluto, circled the Sun independently, but was unluckily captured by its adoptive planet--whereas Pluto was left to wander freely.



and here is another

Titan is the largest moon of the gas-giant planet Saturn, as well as the second-largest moon in our entire Solar System--after Jupiter's enormous Ganymede. Indeed, this smoggy orange moon is almost as big as the planet Mars! Because Titan is situated in the outer domain of our Solar System, circling Saturn--which is the sixth major planet from our Star, the Sun--it is extremely cold, and its chemical atmosphere is frozen. This very interesting atmosphere is composed of a mix of compounds that many astronomers think are comparable to those that existed in our own planet's primordial atmosphere. Titan's strange, dense, orange atmosphere contains large quantities of "smoggy" hydrocarbons. This very heavy shroud of obscuring smog is so extremely dense that it showers "gasoline-like" rain down on the tortured surface of this distant moon-world.



and finally

Astronomers have for years contemplated two competing hypotheses explaining the origin of the Martian moons. The first proposes that Phobos and Deimos are, indeed, escapees from the Main Asteroid Belt. Alas, this viewpoint begs the question of why they should have been so cruelly captured by their adopted parent-planet in the first place. An alternative theory points to the possibility that the moons were born from the debris left by a violent collision between Mars and a primordial protoplanet--a baby planet still under construction. However, this theory also suffers from uncertainty because it does not explain precisely how this particular tragic mechanism gave rise to Phobos and Deimos.

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The new study was published in the April 3, 2014 issue of the journal Nature, and it may provide a solution to a long-standing mystery of lunar origins pertaining to why Earth and its lovely companion appear to sport virtually identical compositions.



"We think that the giant planets got their satellites kind of like the Sun got its planets, growing like miniature solar systems and ending with a stage of final collisions," lead author Dr. Erik Asphaug, of the University of California at Santa Cruz, said in a statement to the press on October 18, 2012.



All New to Mother Earth. This new belt of cosmos that the Sun is going through is all new to Mother Earth. This yearly trek is not the same as last year's. It is quite an adventure, full of surprises, for her to adapt and of course for us as her inhabitants to adjust as well.